Tool-holder.



.B. M. W. HANSON.

TOOL HOLDER.

APPLICATION FILED AUG. 14, I909.

Patented Feb. 8, 1910.

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BENG'I. M. W. HANSON, 0F HARTFORD, CONNECTICUT, ASSIGNOR TO PRATT &WHITNEY COMPANY, OF HARTFORE CONNECTICUT, A CORPORATION OF NEW JERSEY.

TOOL-HOLDER.

To all whom it may concern;

Be it known that I, BENer M. W. HAN- soN, a citizen of the UnitedStates, residing at Hartford, in the county of Hartford and State ofConnecticut, have invented certain new and useful Improvements in Tool-Holders, of which the following is a specification.

This invention relates to tool-holders the object of the invention beingto provide an effective device of this character capable of rigidly andadjustably holding one or more tools.

A tool-holder comprising my invention is adapted for advantageous use inmany different connections being especially adapted however forapplication to fiat-top turretlathes.

In the drawings accompanying and forming part of the presentspecification I have represented in detail one convenientform ofembodiment of the invention which to enable those skilled in the art topractice the same will be fully set forth in the following descriptionwhile the novelty of the invention will be included in the claims succeeding said description. From the statement just made it will beapparent that I do not restrict myself to the disclosure made by saiddrawings and description for certain variations may be adopted withinthe spirit of my invention as expressed in said claims.

Referring to said drawings, Figure 1 is a top plan view of a tool-holderembodying my invention, and, Figs. 2 and 3 are sectional views on thelines 2-2 and 33 respectively of Fig. 1 looking in the direction of thearrows in the latter.

Like characters refer to like throughout the several figures.

It is my custom to make the tool holder in the form of a lower sectionor portion and an upper section or portion the space between the twosections being intended for the reception and adjustment thereinof oneor more tools of suitable nature. Said lower and upper portions mayconsist of plates as 2 and 3 disposed in superposed relation. The loweror base plate 2 of the tool-holder parts Specification of LettersPatent.

Application filed. August 14, 1909.

Patented Feb. 8, 1910.

Serial No. 512,837.

may be connected with the turret-top in any suitable manner for exampleby the row of clamping screws 4: passed through countersunk holestherein and tapped into said top. (Not shown.) It might be stated thatfor convenience the heads of said screws fit in the countersunk portionsof said holes.

.The two plates 2 and 3 may be maintained at the desired distance fromeach other in any suitable manner; for this purpose I have shown spacersconsisting of sleeves 5 of which in the present instance there arefourone at each corner of the device. In like manner any suitable meansmay be provided for holding the two plates 2 and 3 in clamped relationalthough bolts as 6 answer satisfactorily my purpose in this respect,the shanks of said bolts being extended through said spacing sleeves 5while the heads 7 thereof bear against the upper surface of the upperplate 8. The nuts 8 of said bolts fit and slide in tee grooves 9extending uninterruptedly from one side of the base plate 2 to the otherat the front and rear thereof. The shanks of said bolts also passthrough slots 10 at the front and rear of-the upper plate said slotsextending as nearly as practicable from one side to the other side ofsaid upper plate so as to insure a wide range of lateral adjustment ofthe two pairs of bolts 6. One pair of bolts 6 can be adjusted toward andfrom the other or vice versa and during the adjustment of said bolts theshanks thereof more along the elongated slots 10 while the nuts 8thereof slide along the grooves 9.

As indicated the space or interval between the two plates 2 and 3provides a passage or chamber for receiving the tools of which there maybe any suitable number or only one while owing to the constructionhereinafter described said tools can be adjusted freely laterally of thedevice and rigidly held in their adjusted positions.

I have shown a tool 11 in Fig. 2 as held in an adjusted position and atthis time it is preferably borne by the base plate 2 and issubstantially clamped thereto by front and rear binding screws as 12,there being as will be evident on inspection of Fig. 1 three section soas to prevent the same turning in said slots when said binding screwsare run either in or out. Said nut-sleeves are shown as provided withbase or foot-flanges 14 adapted to bear against the under face of theupper plate 3. The lower ends of each pair of screws 12 therefore engagea tool 11 to clamp the same firmly against the base plate 2 as shownboth in Figs. 2 and 3 in full and dotted lines respectively. By backingout a pair of cooperating screws 12 the tool 11 held thereby will befreed so that the tool and the cooperating screws and nutsleeves 13 canbe moved laterally of the toolholder for adjusting purposes and when theadjustment is secured the screws 12 will. be run down to again clamp thetool to the base-plate 2. The heads of the screws 12 are made largeenough to prevent their passage through the slots 10 so that when a toolis released from the influence of a pair of holding screws there is nopossibility of the said screws and the cooperating nuts or sleeves l3dropping all the way from the slots 10 onto the base plate 2 althoughthey may descend a short distance or until said heads strike the upperplate.

Initially the lower and upper plates 2 and 3 are rigidly associated witheach other and this of course is done by turning the corner bolts henthis takes place the plates are drawn together and at the same time arecaused solidly to abut against the intermediate spacing sleeves 5, thenuts 8 bearing solidly against the upper part of the wide portion of thegrooves 9 and the heads 7 of the said bolts bearing equally so againstthe upper surface of the upper plate by virtue of which the two plateswill be as rigidly tied together or connected as though they wereintegral. It should be stated at this point that to prevent said nuts 8from turning I provide the same with rectangular portions 8 which fitsomewhat closely the narrow parts of the tee grooves 9. After the platesare thus connected the tools 11 can be freely adjusted. The manner inwhich the tools are adjusted and that in which the bolts 6 are adjustedare so obvious that it is not deemed necessary to specifically describethis any more than has already been done. The screws 4t can be removedto change an adjustment of the tool-holder as a unit or whole by passingthe hand into the space between the lower and upper plate or the upperplate can be removed to get at said screws 41-.

eaaeee By virtue of the construction set forth I am enabled to positiona tool at practically any point between the sides of the toolholder;that is I can position said tool at any point in the length of theparallel slots 10. For example the two series of corner bolts 6 areshown as being at'the' outer extremes of their adjustments. I might movetwo front and rear alined bolts side-wise and place exactly where theyare the nutsleeves 13, and the screws 12 in which event the tool heldthereby would be precisely where the spacing sleeves 5 of said bolts areshown. By this organization therefore I can get not only maximumsidewise adjustment but can locate a tool to operate upon any portion ofthe work.

What I claim is:

1. A tool-holder comprising a lower plate, an upper plate having anelongated laterally extending slot, and clamping bolts connecting theplates, extending through said slot and provided with spacing devicesfor sepa rating the plates.

2. A tool-holder comprising a lower plate, an upper plate having anelongated laterally-extending slot, clamping bolts for connecting theplates, extending through said slot and provided with spacing devicesfor separating the plates, and a nut-sleeve adjustable in said slot.

3. A tool-holder comprising a lower plate having a tee-groove therein,an upper plate having an elongated laterally-extending slot, boltsextending through the said slot and adjustable therein and having each apart slidable in said groove, and means for spacing the plates from eachother.

4:. A tool-holder comprising a lower plate, an upper plate having anelongated laterally-extending slot, bolts connecting the plates inclamped relation, extending through and adjustable in said slot, andmeans for spacing the plates.

A tool-holder comprising a lower plate having a tee groove, an upperplate having an elongated laterally extending slot, bolts extendingthrough and adjustable in said slot, having nuts slidable in saidgroove, and spacing sleeves encircling the respective bolts and bearingagainst the plates.

6. A tool-holder comprising a lower plate, an upper plate having anelongated laterally-extending slot, bolts for connecting said plates inrigid relation, extending through and adjustable in said slot, means forspacing the plates from each other, and a nut-sleeve adjustable andnon-rotatively fitted in said slot and said nut-sleeve being adapted toreceive a binding-screw to engage the work between said plates.

7. A tool-holder comprising a lower plate having a tee-groove therein,an upper plate having an elongated laterally-extending With saidnut-sleeve.

948,698 &

slot, bolts extended through and adjustable in said slot, having nutsslidable in said tee grooves, spacing sleeves surrounding the bolts andbearing against the said plates, at nut-sleeve adjustable andnon-rotative in; said slot, and a binding screw connected 5 in presenceof two Witnesses.

BENGT M. V. HANSON.

\Vitnesses CHAS. E. H0111, F. E. ANDERSON.

" In testimony whereof I affix my signature l l

